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Andrew Morton authored
From: Juergen Quade <quade@hsnr.de> Lots of places in the kernel are using [v]snprintf wrongly: they assume it returns the number of characters copied. It doesn't. It returns the number of characters which _would_ have been copied had the buffer not been filled up. So create new functions vscnprintf() and scnprintf() which have the expected (sane) semaptics, and migrate callers over to using them.
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